﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp3
{
    class Refclass
    {
        public bool Judge(ref int num)
        {
            if (num % 5 == 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        
    }
}
